<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style type="text/css">
	body{
		text-align:center;
		font-size:25px;
	}
	span{
		width:30px;
		height:10px;
		display:inline-block;
	}
</style>
</head>
<body>

<?php
for($i=1; $i<=10; $i++) {
	for($j=1; $j<=10; $j++) {
		if($i>=3 && $i<=8 && $j>=3 && $j<=8)
			echo '<span></span>';
		else
			echo '<span>*</span>';
	}
	echo '<br>';
}
?>
</body>
</html>